MUTEC MC-3.1 User Manual

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Digital Audio Sync

Master Clock Generator

Digital Audio + SD Video Sync

MUTEC part no. 8015-065 (MC-3) + 8015-066 (MC-3.1)

Master Clock Generator

SAFETY INSTRUCTIONS

General instructions To reduce the risk of fire or electrical shock, do not expose this appliance to rain or moisture, direct sunlight or excessive heat from sources such as radiators or spotlights. No user serviceable parts are inside. Repair and maintenance must be carried out by qualified personnel authorized by MUTEC GmbH! The unit has been designed for operation in a standard domestic environment. Do NOT expose the unit and its accessories to rain, moisture, direct sunlight or excessive heat produced by such heat sources as radiators or spotlights! The free flow of air inside and around the unit must always be ensured.

C A U T I O N

R I S K O F

ELECTRICAL SHOCK!

Initi al operation

Prior to the initial operatio n of the unit, th e appli ance, i ts acc essories a nd packaging m ust be inspecte d for any s igns of physi cal damage tha t may have occurred during transit . If the un it has been damage d mechanically or if li quids have be en spilled inside the enclo sure, the appliance may not be co nnec ted to the mains or mus t be dis conne cte d from th e mains i mmed iatel y! If the unit is damag ed, pl ease do NOT ret urn it to M UTEC G mbH, b ut noti fy you r deale r and the shipping com pany immedia tely, ot her wise claims for dama ge or replace ment may not be granted .

If the device is left in a low-temperature environment for a long time and then is moved to a roomtemperature environment, condensation may occur on the inside and the exterior. To avoid shortcircuits and flashovers, be sure to wait one or two hours before putting the device into operation.

Power su pply The device contains a self-adapting wide-range power supply supporting the majority of global standard line voltages within a range of 90…250 V, with no need for making adjustments. Make sure that your line-voltage source provides a supply voltage within the specified range. In addition, make sure that the device is properly grounded via the local electric installation.

Pleas e use th e enclo sed power cord (se e packaging) to conne ct th e unit to the mains. Swi tch the unit of f befo re you at tempt to conn ect i t to the ma ins. C onnect the p ower co rd to the u nit, then to a standard 3 -pin mains outlet . To draw the p ower cord, ne ver pull on the ca ble but on the mains plug!

The uni t must b e grounded during op erati on!

For information on the power-inlet wiring, refer to the »Wirin g of conn ectors« section in the appendix. Disconnect the device from the mains when not using it for an extended period!

Decla ratio n of Conf ormit y

We herewith confirm that the product complies with the European Commission’s standards on electromagnetic compatibility.

Interference emission: EN 50081-1, 1992 Resistance to interference: EN 50082-1, 1992

Presupposed as operation condition is that all clock outputs are connected with high-quality and good shielded BNC 75 ohms cable.

This symbol, a flash of lightning inside a triangle, alerts you to the presence of uninsulated dangerous voltage inside the enclosure - voltage that may be sufficient to constitute a risk of shock.

This symbol, an exclamation mark inside a triangle, alerts you to important operating or safety instructions in this manual.

WARRANTY REGULATIONS

§1 Warranty

MUTEC GmbH warrants the flawless performance of this product to the original buyer for a period of two (2) years from the date of purchase. If any failure occurs within the specified warranty period that is caused by defects in material and/or workmanship, MUTEC GmbH shall either repair or replace the product free of charge within 90 days. The purchaser is not entitled to claim an inspection of the device free of charge during the warranty period. If the warranty claim proves to be justified, the product will be returned freight prepaid by MUTEC GmbH within Germany. Outside Germany, the product will be returned with the additional international freight charges payable by the customer. Warranty claims other than those indicated above are expressly excluded.

§2 Warranty transferability

This warranty is extended exclusively to the original buyer who bought the product from a MUTEC GmbH specialized dealer or distributor, and is not transferable to anyone who may subsequently purchase this product. No other person (retail dealer, distributor, etc.) shall be entitled to give any warranty promise on behalf of MUTEC GmbH.

§3 Waranty regulations

The return of the completed registration card, or online registration on one of the websites specified below, is a condition of warranty. Failing to register the device before returning it for repair will void the extended warranty.

The serial number on the returned device must match the one stated on the registration card or entered during online registration. Otherwise, the device will be returned to the sender at the sender’s expense. Any returned device must be accompanied by a detailed error description and a copy of the original sales receipt issued by a MUTEC dealer or distributor. The device must be returned free of shipping expenses and in the original package, if possible; otherwise, the sender has to provide comparably protective packaging. The sender is fully responsible for any damage or loss of the product when shipping it to MUTEC GmbH.

§4 Limitation of warranty

Damages cau sed by the follo wing co nditi ons are not cove red by th is warranty :

Damages cau sed by every k ind of no rmal wear and tea r (e.g. displ ays, L EDs, poten tiometers, faders, swit ches , but tons , conne ctin g elem ents , prin ted lab els, cover glass es, c over pr ints , and similar pa rts). Functional f ailure o f the pro duc t caus ed by imprope r installation (p leas e obse rve C MOS com ponents han dling instr uctions!), ne glec t or mis use of the pro duct, e.g. failure to operate the unit in complian ce with the ins truc tion s give n in the us er or servi ce manu als. Damage caused by any form of ex ternal mechanical impa ct or modifi catio n. Damage caused by the u ser ’s failure to conn ect a nd operate the u nit in co mplia nce wit h local safety regulations. Damage caused by for ce majeure (fire, explosi on, flood, li ghtni ng, war, vandalism, et c.) . Consequen tial damages o r defe cts i n product s from other manufac turers as wel l as any co sts result ing fro m a loss of producti on.

Repair s carried ou t by per sonn el which is not au thori zed fro m MUTEC GmbH wi ll void th e warranty. national, technical, or safety regulations in a country or of the customer do not constitute a warranty claim and should be set with MUTEC GmbH in advance.

§5 Repairs

To obtain warranty service, the buyer must call or write to MUTEC GmbH before returning the unit. All inquiries must be accompanied by a description of the problem and the original buyer’s invoice. Devices shipped to MUTEC GmbH for repair without prior notice will be returned to the sender at the sender’s expense. failure please contact:

Adaptations and modifications to the device made with regard to

In case of a functional

MUTEC Gesellschaft fu er Syst ement wicklung und Kompo nente nvert rieb mbH Siekeweg 6/8 • 12309 B erli n • Germany • Fon 030-74 688 0- 0 • Fax 030-746 880 -99 • Tecsuppo rt@MUTEC-net.com • www.MUTEC-net.com

MUTEC GmbH assumes no liability for any incorrect information given in this manual. Please note that all software/hardware product names are registered trademarks of their respective owners. No part of this manual may be reproduced, copied or converted to a machine-readable form or electronical media without a written permission of MUTEC GmbH. We reserve the right to change or improve our products without notice.

MUTEC GmbH 2 00 6 –2012

CONTENT

INTRODUCTION

General Function Description . . . . . . . . . . . . . . . . . 7

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Peripheral MUTEC Products

. . . . . . . . . . . . . . . . . . 8

CONTROL ELEMENTS AND TERMINALS

MC-3 SMART CLOCK Front Panel . . . . . . . . . . . . . . . 9

MC-3.1 SMART CLOCK SD Front Panel

MC-3 SMART CLOCK Rear Panel . . . . . . . . . . . . . . . .

MC-3.1 SMART CLOCK SD Rear Panel

. . . . . . . . . . . . 9

. . . . . . . . . . . . . 10

INSTALLATION

Content of the Box . . . . . . . . . . . . . . . . . . . . . . . 11

Placing the Device . . . . . . . . . . . . . . . . . . . . . . . 11

Wiring the Word Clock and Video Interfaces . . . . . . . . .

Wiring the AES/EBU and S/PDIF Interfaces . . . . . . . . . . 12

GENERAL OPERATION

Selecting Function Menus and setting Functions . . . . . . 13

Steps of Operation . . . . . . . . . . . . . . . . . . . . . . . 13

MC-3 + MC-3.1 AUDIO CLOCK SETTINGS

CLK BASIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

CLK MULTIPLIERS . . . . . . . . . . . . . . . . . . . . . . . . . . 14

MC-3.1 SD VIDEO SETTINGS

SD VIDEO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

SD FORMAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Video and Audio Signal Relations . . . . . . . . . . . . . . 15

APPENDIX

Pin Assignment of the Connectors . . . . . . . . . . . . . . 17

Technical Data

Generatable Word Clock (WCLK) Frequencies . . . . . . . . 19

Generatable AES/EBU and S/PDIF Frequencies . . . . . . . . 19

. . . . . . . . . . . . . . . . . . . . . . . . . 18

B E D I E N E L E M E N T E

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INTRODUCTION

Thank you for purchasing a MC-3 SMART CLOCK or MC-3.1 SMART CLOCK SD, Digital Audio & Video Sync Master Clock Generator from MUTEC GmbH.

Please keep this manual for future reference!

General Function Description

SMART CLOCK and SMART CLOCK SD generate different clock signals for synchronization of digital audio and SD video devices such as hard-disk recorders, A/V workstations, digital mixing consoles, AD/DA converters, musical instruments and sound cards. Simultaneous use of all available clock signals enables each device in the recording studio to be individually synchronized. In addition, different clock rates of all audio-related clock signals can be simultaneously output. Thus, new devices with higher clock rates may be integrated into an existing studio set-up without difficulty. It is also possible to supply various workstations in the same room with differ ent clock rates.

MC-3 SMART CLOCK offers 7 basis Ultra low-jitter Word Clocks from 32.0kHz up to 192.0kHz output pairs with multipliers x1, x2 and x4 for a maximum clock rate of

768.0kHz. For the synchronization of older digidesign ProTools™ systems, the respec-tive Word Clock frequencies can be transferred as Word Clock x 256 (also called Super Clock). AES/EBU and S/PDIF (optical + coaxial) blank frame sync signals are available from 32.0kHz up to 192.0kHz. Every Word Clock output pair as well as the AES/EBU and S/PDIF outputs can be set to a different clock rate, based on one common clock frequency.

MC-3.1 SMART CLOCK SD offers same audio clock functionalities like MC-3 SMART CLOCK, but includes a standard definition (SD) video sync reference generator supporting PAL or NTSC SD video sync signals as Black + Burst or composite sync as well as the respective color bars. Two additional video outputs are available on the rear side of the housing. Thus, audio clocks and video sync references are all available at the same time to synchronize complete audio/video facilities.

The design advantage of the SMART CLOCKs is its high-precision frequency generator, from which all clock signals are simultaneously derived. As a result, the individual clock signals generated are synchronized to each other in phase, and hence feature the same frequency accuracy and time base! The frequency generation is accurate to < ± 1ppm and thus complies with AES 11, Grade 1, as well as broadcast specifications.

For larger equipment set-ups, which require more AES/EBU clock outputs than are provided by the SMART CLOCKs, MUTEC offers a complementary AES/EBU signal distributor which is called: MC-2. Therefore, please have a look on our website: www.MUTEC-NET.de !

, which are then independently distributed to four clock

The grey boxes contain supplementary informationen for the corresponding sections in the text columns. The content of the individual box refers to the description in the text column beside the box.

additional information which are of major importance for the functional descriptions in the text column.

Boxes which contain a triangle with an exclamation mark inside should be read carefully!

These include

your MUTEC product through our website immediately after purchasing. This ensures full warranty services over a period of two years after purchasing the product. Moreover, for all registered products we offer to our customers technical support. We also will inform you about product updates and new products which may of interest for you (on voluntary base, of course).

Please regsiter your product at:

www.MUTEC-net.

> SERVICES, > MUTEC Product Registration

We ask you to be so kind to register

com

Features

Generation of 7 Ultra low-jitter basis Word Clock frequencies ranging from 32.0kHz up to 192.0kHz. Word Clock outputs can be multiplied with factors x1, x2, x4 and x256 for a total of 15 different Word Clock frequencies. Simultaneous output of different clock rates. Frequency accuracy in compliance with AES11, Grade 1. Generation of PAL/NTSC + NTSC b/w SD video sync signals as Black + Burst, composite sync or color bar with MC-3.1 SMART CLOCK SD. Phase-synchronized generation of S/PDIF and AES/EBU blank frames. All adjustments are retained after power-down. Simple, new user interface. Built-in international power supply.

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I N T R O D U C T I O N

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Applications

A / V synchronization Low-jitter clock supply for entire studio Acoustical improvement of AD/DA converters Elimination of »clicks and pops« in audio recordings Stellate clock signal supply Multiple clock rate synchronization Film, video and audio transfers

Peripheral MUTEC Products

Signal Distribution Amplifiers:

MC-2 The MC-2 is a high-performance digital audio and reference sync signal distribution amplifier for AES3/11 and AES3/11id signals. The unit distribute s and converts between the mentioned AES signals and standards.

MC-7 The MC-7 is a flexible, high-performance 8-channel Word Clock distribu tion amplifier and audio clock converter.

Format and Sampling Rate Converters with internal Master Clock:

MC-4 The MC-4 is a high-performance digital audio multichannel format and sampling rate converter for ADATTM, AES3 and S/P-DIF

MC-6 The MC-6 is a high-performance digital audio dual channel format converter for AES3, AES3id and S/P-DIF.

MC-8 + MC-8.1 The MC-8 and MC-8.1 are 8 channel, high-performance digital audio and sampling rate converters for AES3 and AES3id.

Cables for Digital Audio:

Optical cables in different lenghts from 0.5 m to 20 m for S/P-DIF and

ADAT

transfers.

MW-05/19 Set of two rack mounting angles to install one MC product frontally into one unit of a 19” rack.

MW-03/19 Set of two rack mounting angles to install one MC product on the rear side of a 19” rack.

MW-02/19 Mounting plate to install two MC products side by side into one unit of a 19” rack.

For all peripheral products please have a look on our website: www.MUTEC-NET.com !

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B E D I E N E L E M E N T E

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CONTROL ELEMENTS AND TERMINALS

MC-3 SMART CLOCK Front Panel

1 POWER

This red LED lights up when the unit is switched on with the rear panel POWER switch (on condition that the adjusted voltage matches your local voltage).

2 MENU Use this key to access the different functional menus.

3 SELECT Use this key to select a function from a specific functional menu.

4 CLK BASIS This functional menu enables the setting of the base clock rate between

32.0kHz and 192.0kHz.

5 CLK MULTIPLIERS This functional menu lets you determine the factor by which the basis clock rate is multiplied additionally. This setting can be made individually for every Word Clock pair of outputs as well as for the AES/EBU and S/PDIF outputs.

6 WCLK OUT 4 This pair of Word Clock outputs transfers either all standard Word Clock rates as well as Word Clock x 256 for older digidesign ProTools™ systems. Their numbering is aligned to the corresponding functional menu on the front panel. For adjusting these outputs see chapter OPERATION.

MC-3.1 SMART CLOCK SD Front Panel

432 5

Refer to the OPERATIONS chapter for more information.

For detailed specifications on all terminals, refer to the »Pin Assignment of the Connectors« and »Technical Data« in the chapter APPENDIX.

Basis operation of MC-3.1 SMART CLOCK SD is aligned to this one of previously described MC-3.

1 SD VIDEO Within this functional area the standard definition video sync reference generator can be set to output PAL, NTSC or NTSC black + white.

2 SD FORMAT Use this key to change the output format of the selected video sync reference signal between Black +Burst, composite sync and color bar.

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C O N T R O L E L E M E N T S

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MC-3 SMART CLOCK Rear Panel

Refer to the »Generatable Word Clock Frequencies« and »Generatable AES/EBU and S/PDIF Frequencies« sections in the APPENDIX for a full list of all Word Clock, AES/EBU and S/PDIF clock rates that can be generated.

1 WC LK OUT 1 – 3

These 3 pairs of Word Clock outputs transfers either all standard Word Clock rates as well as Word Clock x 256 for older digidesign ProTools™ systems. Their numbering is aligned to the corresponding functional menus on the front panel. The individual BNC connectors of an output pair are marked as A and B; this allows, for example, for a simple documentation of the connected devices. For adjusting these outputs see chapter OPERATION.

2 AES/EBU OUT 5 These 2 AES/EBU outputs transmit a transformer-balanced electrical blank-frame clock signal. Their numbering is aligned to the corresponding functional menu on the front panel. The individual XLR connectors of this output pair are marked as A and B; this allows, for example, for a simple documentation of the connected devices. chapter OPERATION.

3 S/PDIF OUT 6 This 2 S/PDIF outputs, available as optical and coaxial interfaces, transmit an optical S/PDIF blank frame signal and an unbalanced electrical S/PDIF blank frame signal. Their numbering is aligned to the corresponding functional menu on the front panel. For adjusting these outputs see chapter OPERATION.

4 MAINS IN, Power Switch + Mains connector (IEC) This is the main switch for switching the device on and off. Connect the supplied IEC power cable to the device‘s mains connector. Make sure that the power switch is turned off before connecting the device to your power source finally. Line voltages within the range of 90…260 V with a frequency of 50 or 60 Hz can be applied. The internal power supply will automatically make all necessary adjustments.

Heed the SAFETY INSTRUCTIONS at the beginning of this manual.

For adjusting these outputs see

432

MC-3.1 SMART CLOCK SD Rear Panel

All audio clock outputs are the same as previously described for MC-3.

1 SD VIDEO These 2 video outputs transmit a standard definition video sync reference signal which can be PAL, NTSC or NTSC black + white. For adjusting these outputs see chapter OPERATION.

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B E D I E N E L E M E N T E

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INSTALLATION

Content of the Box

The unit was packed carefully. Nevertheless we recommend to check the content directly after opening the package:

1 x MC-3 SMART CLOCK or MC-3.1 SMART CLOCK SD 1 x Power cable 1 x Manual 4 x Rubber feets

Placing the Device

The unit should be set up as closely as possible to the devices to which it will be connected, so as to avoid excessive cable lengths. Use the 4 rubber feets enclosed with the appliance and stick them symmetrically on the bottom side of the unit to protect the enclosure and supporting surface from being damaged. When the unit is installed in a rack, the rubber feets cannot be attached to save space.

The device can be mounted into a standard 19“ rack and will require 1 unit. For this installation MUTEC offers an optional set of rack ears (MW05/19, order no. 8020-035). The mounting depth including the terminals is 175mm/6.9“. Another 150mm/5.9“ should be added for the required cables.

Additional slide-in rails on the rack inside are recommended for safe installation. This will also avoid long-term mechanical deformation of the housing.

If there are any damages please refer to SAFETY INSTRUCTIONS, Initial Operation, and WARRANTY REGULATIONS.

should be read carefully.

produced by radiators, heaters, or spot lights! Sufficient air circulation in the environment of the device must be ensured!

The condition of the packaging material and the device should be checked carefully additionally.

Before installing the unit the section SAFETY INSTRUCTIONS located at the beginning of this manual

Never expose the device and accessories to rain, moisture, direct sunlight, or excessive heat

Wiring the Word Clock and Video Interfaces

To allow for the synchronization of signals, the interfaces of all devices involved must be properly connected to each other, so as to ensure a logical signal flow. Always be sure to connect the Word Clock outputs of the MC-3 SMART CLOCK and MC-3.1 SMART CLOCK SD to the corresponding input of the devices you wish to synchronize. Cable lengths should be kept as short as possible to minimize signal losses and/or interferences!

For the transmission of Word Clock or video signals electrical, unsymmetrical cables with a resistance of 75 Ω and BNC connectors on both ends are used. Typically, such cables are marked »RG-59U, RG59B/U«.

Additionally, you should make sure that the Word Clock or video inputs to be connected to the MC-3 SMART CLOCK’s or MC-3.1 SMART CLOCK SD’s outputs have a 75 Ω terminating resistor! Most Word Clock or video inputs allow for enabling/disabling the termination with a so-called »terminationswitch«, which may be located on the outside or inside of the device.

For devices which have no termination of the Word Clock input, e.g. RME Hammerfall with Word Clock i/o, Alesis BRC or M-Audio ProFire Light bridge, you can use an additional BNC-T piece to terminate the input. Plug the T piece with its center connector into the input of the receiving device. Then, connect the cable coming from the MC-3 SMART CLOCK or MC-3.1 SMART CLOCK SD to one of the lateral connectors, and the other connector of the BNC-T piece to a 75 Ω resistor forming the BNC termination.

Basically, you should avoid »looping through« Word Clock leads by means of passive BNC-T pieces to preserve the signal quality, as level drops will be the result. If there is no other way to wire your set-up, please make sure that all Word Clock inputs (except for the last device in the chain) have their terminations disabled! In a serial Word Clock chain only the last clock input should have a termination! Never connect more than three devices in series to one output!

It is imperative that the lengths of all cables connected are largely

ensure that all devices will be synchronized in phase (exception: cable tolerances).

Please make sure that the cable used has a resistance of 75 specifications! If a cable with a different resistance is used, a dramatic deterioration of the signal quality can be the result! In this case, the perfect synchronization of all devices involved could be impaired.

We recommend using high-grade cables with a good shielding for your clock signal leads, in particular, if you need to transmit Word Clock x 256 (so-called Super Clock) signals over greater distances. In any case, a length of max. 10 meters (approx. 30 feets) should never be exceeded!

the same, as this is the only way to

Ω, in compliance with the

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I N S TA LLAT I O N

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Wiring the AES/EBU and S/PDIF Interfaces

Since some manufacturers offer optimized cables for the transmission of digital S/PDIF and AES/EBU audio signals, it will be a good idea to ask your retailer for specific cables.

Especially when working with high AES/EBU clock rates well shielded

clock lines are imperative to avoid increased radiation! Standard cables are normally useable for clock rates up to 50.0kHz. Special shielded cable material should be used for transfer of higher clock rates.

MUTEC offers optical cables of various lengths that have been specifically tested for the transmission of S/PDIF and ADAT™ signals (retailers and distributors only)!

Connect the AES/EBU interfaces with the help of balanced electrical cables equipped with XLR connectors on both ends. The specifications stipulate a specific cable resistance of 110 Ω (ask your retailer for a confirmation of this value when purchasing the cables).

Connect the coaxial S/PDIF interface with the help of unbalanced electrical cables equipped with cinch connectors on both ends. The specifications stipulate a specific cable resistance of 75 Ω (ask your retailer for a confirma- tion of this value when purchasing the cables).

Connect the optical S/PDIF interface with the help of Toshiba TOSLINK™ compliant optical fiber cables. Here, you can use both plastic and glass fiber-based cables. When using plastic fiber cables, lengths of 10 meters should not be exceeded, so as to ensure the reliable transmission of signals. Glass fiber cables can transfer data reliably even over greater distances.

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B E D I E N E L E M E N T E

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GENERAL OPERATION

Selecting Function Menus and setting Functions

Operating the MC-3 SMART CLOCK and MC-3.1 SMART CLOCK SD is very simple! The device is fully operated using the 2 keys at the front panel.

1 Switching the MENU key toggles between different basic function menus. 2 Switching the SELECT key activtes individual functions within one

function menu.

2. SELECT

selects individual

1. MENU

function menus.

MENU + SELECT operation

selects individual functions within one function area.

Menus

Functions

Steps of Operation

1 First press on MENU or SELECT key enables the last selected function

within the last selected function menu. The corresponding LED is beginning to flash. 2 Every press on SELECT key will select a new function. The LED of every selected function will flash accordingly and the corresponding function is available at once. 3 When the needed function is selected, do not press the switches again! After a period of approx. 4 seconds the LED in front of the selected function will stop flashing.

All user-specific function settings are available furthermore when power is restored.

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O P E R AT I O N

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MC-3 + MC-3.1 AUDIO CLOCK SETTINGS

CLK BASIS

Within this function menu you may select the required basis clock (CLK) frequency for your studio set-up. This selection serves as the basic setting for all WCLK output pairs as well as the AES/EBU and S/PDIF outputs. There are 7 different basis clock rates adjustable by pressing the SELECT key for different times. The LEDs display the selected clock rate as follows:

32.0 kHz 44.1 kHz 48.0 kHz 88.2 kHz 96.0 kHz

176.4 kHz 192.0 kHz

CLK BASIS

The factory default is set at 44.1kHz.

CLK MULTIPLIERS

These multiply functions are separately available for all 4 Word Clock output pairs as well as for the AES/EBU and S/PDIF outputs. Their numberings are aligned to the output numbers. Select the prefered output with the MENU key and choose the needed multiply factor by pressing the SELECT key accordingly. The factory default is set to x 1.

CLK MULTIPLIERS

CLK multipliers 1 – 4 For every of these Word Clock output pairs are 4 multipliers available:

x 1, x 2, x 4, x 256

The multiply functions »x 1, x 2, x 4« multiply all available basis clocks up to the highest possible Word Clock rate of 768.0kHz (192.0kHz basis clock x 4). The function »x 256« multiplies only the basis clocks 44.1kHz and 48.0kHz to output the so-called Super Clock rates necessary for older digidesign ProTools™ MX systems. If a different basis clock is selected, the »x 256« function is not acceccible.

The factory default is set at x 1.

CLK multiplier 5 For the AES/EBU output pair are 3 multiply functions available:

x 1, x 2, x 4

Due to the maximum possible AES/EBU clock frequency of 192.0kHz, the functions of these multipliers are dependent on the adjusted basis clock.

Example 1 The basis clock runs at 32.0kHz, 44.1kHz or 48.0kHz:

x 1: AES/EBU outputs run at 32.0kHz, 44.1kHz or 48.0kHz x 2: AES/EBU outputs run at 64.0kHz, 88.2kHz or 96.0kHz x 4: AES/EBU outputs run at 128.0kHz, 176.4kHz or 192.0kHz

Example 2 The basis clock runs at 88.2kHz or 96.0kHz:

x 1: AES/EBU outputs run at 88.2kHz or 96.0kHz x 2: AES/EBU outputs run at 176.4kHz or 192.0kHz x 4: AES/EBU outputs run at 176.4kHz or 192.0kHz

Example 3 The basis clock runs at 176.4kHz or 192.0kHz:

x 1: AES/EBU outputs run at 176.4kHz or 192.0kHz x 2: AES/EBU outputs run at 176.4kHz or 192.0kHz x 4: AES/EBU outputs run at 176.4kHz or 192.0kHz

The factory default is set at x 1.

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O P E R AT I O N

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CLK multiplier 6 Both S/PDIF outputs, optical and coaxial, receive same clock rate settings. For the S/PDIF output pair are 3 multiply functions available:

x 1, x 2, x 4

Due to the maximum possible S/PDIF clock frequency of 192.0kHz, the functions of these multipliers are dependent on the adjusted basis clock.

Example 1 The basis clock runs at 32.0kHz, 44.1kHz or 48.0kHz:

x 1: S/PDIF outputs run at 32.0kHz, 44.1kHz or 48.0kHz x 2: S/PDIF outputs run at 64.0kHz, 88.2kHz or 96.0kHz x 4: S/PDIF outputs run at 128.0kHz, 176.4kHz or 192.0kHz

Example 2 The basis clock runs at 88.2kHz or 96.0kHz:

x 1: S/PDIF outputs run at 88.2kHz or 96.0kHz x 2: S/PDIF outputs run at 176.4kHz or 192.0kHz x 4: S/PDIF outputs run at 176.4kHz or 192.0kHz

Example 3 The basis clock runs at 176.4kHz or 192.0kHz:

x 1: S/PDIF outputs run at 176.4kHz or 192.0kHz x 2: S/PDIF outputs run at 176.4kHz or 192.0kHz x 4: S/PDIF outputs run at 176.4kHz or 192.0kHz

The factory default is set at x 1.

MC-3.1 VIDEO SETTINGS

SD VIDEO

This menu enables you to set the internal standard definition (SD) video sync reference generator to 3 different video sync signal standards:

1) PAL: 25fps, 625 lines

2) NTSC: 29.97fps, 525 lines

3) NTSC BW: 30fps, 525 lines (black + white)

The video standard settings apply to both video outputs simultanuously.

SD FORMAT

Within this menu, you can choose a specific output format of the previously set video sync signal standard:

1) B + B: Black + Burst, this function outputs a SD video composite sync signal with inserted color bust.

2) COMP: Composite Sync, this function outputs a SD video composite sync signal without color bust.

3) CB: Color Bar, this function outputs a SD video color bar signal.

SD VIDEO

Video and Audio Signal Relations

MC-3.1 auto-detects integer relationsships between the adjusted video standard and basis clock rate. This applies especially when PAL is selected as video reference and the basis clock rate (CLK BA SIS ) is set to 48.0kHz,

96.0kHz or 192.0kHz. In that case, the AES/EBU and S/PDIF generators use the video frame to lock the Z-preamble of the AES channel block start, aligned to AES11-1997/2003 and EBU R83-1996.

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A N H A N G

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B E D I E N E L E M E N T E

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APPENDIX

Pin Assignment of the Connectors

Mains

1 Neutral (blue; USA: white) 2 Protective earth (green/yellow; USA: green) 3 Live, phase (brown; USA: black)

Word Clock + SD Video BNC Output

1 Signal 2 Ground

AES/EBU XLR Output

1 Ground 2 a conductor (hot / +) 3 b conductor (cold / -)

S/PDIF Cinch Output

S/PDIF Optical Output TOSLINK Standard

1 Audio signal 2 Audio ground

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1 Optical signal

A P P E N D I X

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Technical Data

WORD CLOCK SYNC OUTPUT 1 – 4

Interface 8 x BNC female, unbalanced, individually buffered, adjustable in pairs

Output levels 3.5V (p-p) @ 75Ω, output impedance 22Ω

AES/EBU SYNC OUTPUT 5

Interface

Format AES 11 – 1997/2003

Resolution 24bits

S/PDIF SYNC OUTPUT 6

Interfaces

Format IEC 60958 blank frame

Resolution 24bits

VIDEO SYNC OUTPUTS (only MC-3.1)

Interface

Output levels

VIDEO GENERATOR SPECIFICATIONS (only MC-3.1)

Generated SD video sync signal standards

Generated video formats Black + Burst, Composite video sync, 100/75 EBU PAL + 100/7.5//75/7.5 NTSC Color bar

INTERNAL REFERENCE CLOCK SPECIFICATIONS

Oscillator type TCXO (temperature compensated crystal oscillator)

Clock accuracy (shipped) < ± 1.0ppm

Clock stability vs. temperature < ± 1.0ppm within -10°C to +60°C

Operating temperature -10°C to +60°C

Clock jitter < 10ps (RMS)

POWER SUPPLY

Type

Input voltage 90V – 260V (automatic adjustment), 47Hz – 440Hz

Power consumption max. 10W

SYSTEM UNIT COVER

Cover size / material / color 196 x 42 x 156mm without connectors (W x H x D), aluminium sheet 1mm, black

Front panel size / material 198 x 44 x 2mm (W x H x D), aluminium Weight MC-3 ~ 700g Weight MC-3.1 ~ 780g

2 x XLR male, transformer balanced, 3.5Vpp @ 110Ω, output impedance 110Ω, individually buffered

1 x Coaxial (Cinch/RCA female), unbalanced, 0.5V (p-p) @ 75Ω, output impedance 75Ω, individually buffered

1 x Toshiba ToslinkTM, EIAJ RC-5720

2 x BNC female, unbalanced, output impedance 75Ω, individually buffered, adjustable in pairs in Paaren anpassbar

300mVpp ± 7mV burst level @ 75

300mVpp ± 7mV H/V sync level @ 75

PAL 25fps, 625 lines, ITU-R.BT470

NTSC 29,97fps, 525 lines, SMPTE170M

NTSC 30fps, 525 lines, SMPTE170M

Internal switching power supply

Ω

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A P P E N D I X

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Generatable Word Clock (WCLK) Frequencies

WCLK BASIS

32.0kHz 32.0kHz 64.0kHz 128.0kHz –

44.1kHz 44.1kHz 88.2kHz 176.4kHz 11.2896MHz

48.0kHz 48.0kHz 96.0kHz 192.0kHz 12.2880MHz

88.2kHz 88.2kHz 176.4kHz 352.8kHz –

96.0kHz 96.0kHz 192.0kHz 384.0kHz –

176.4kHz 176.4kHz 352.8kHz 705.6kHz –

192.0kHz 192.0kHz 384.0kHz 768.0kHz –

Generatable AES/EBU and S/PDIF Frequencies

WCLK BASIS

32.0kHz 32.0kHz 64.0kHz 128.0kHz

44.1kHz 44.1kHz 88.2kHz 176.4kHz

48.0kHz 48.0kHz 96.0kHz 192.0kHz

88.2kHz 88.2kHz 176.4kHz 176.4kHz

96.0kHz 96.0kHz 192.0kHz 192.0kHz

176.4kHz 176.4kHz 176.4kHz 176.4kHz

192.0kHz 192.0kHz 192.0kHz 192.0kHz

x 1 x 2 x 4 x 256

x 1 x 2 x 4

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ALL SOFTWARE AND HARDWARE PRODUCT NAMES ARE REGISTERED TRADEMARKS OF THEIR RESPECTIVE OWNERS. WE RESERVE THE RIGHT TO CHANGE TECHNICAL DETAILS WITHOUT PRIOR NOTICE.

MUTEC GmbH 2002

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7045-014

FON 0049-(0)30-746880-0

FAX 0049-(0)30-7468 80-99

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MUTEC MC-3.1 User Manual

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Frequently Asked Questions

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